Mixing impeller



FIG. 1 is a top perspective view of a mixing impeller showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design.

The mixing impeller of the embodiment of FIGS. 1-6 is rotationally symmetrical at 120° intervals around a central vertical axis thereof. 

CLAIM The ornamental design for mixing impeller, as shown and described. 